Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires squizlabs/php_codesniffer dev-4.x, found squizlabs/php_codesniffer[dev-feature/ghactions-run-windows-tests-on-windows, dev-TEST/ghactions-revert-code-coverage-php-version, dev-feature/timingtest-remove-flaky-assertions, dev-feature/ghactions-test-against-libxml-2.14, dev-master, dev-feature/3.x-metrics-for-switch-statements, dev-feature/3769-improve-todo-fixme-sniffs, dev-feature/psr2-namespacedeclaration-bow-out-on-php-close-tag, dev-phpcs-4.0/pr-1010-explainer, 1.4.2, ..., 1.5.x-dev, 2.0.0a1, ..., 2.9.x-dev, 3.0.0a1, ..., 3.x-dev (alias of dev-master), 4.0.0beta1, 4.0.x-dev, 4.x-dev] but it does not match the constraint. Problem 2 - Root composer.json requires dealerdirect/phpcodesniffer-composer-installer ^0.4.1 || ^0.5 || ^0.6.2 || ^0.7 || ^1.0 -> satisfiable by dealerdirect/phpcodesniffer-composer-installer[v0.4.1, ..., v0.7.2, v1.0.0]. - dealerdirect/phpcodesniffer-composer-installer[v0.4.1, ..., v0.4.2] require composer-plugin-api ^1.0 -> found composer-plugin-api[2.6.0] but it does not match the constraint. - dealerdirect/phpcodesniffer-composer-installer[v0.4.3, ..., v0.6.2] require php ^5.3|^7 -> your php version (8.4.7) does not satisfy that requirement. - dealerdirect/phpcodesniffer-composer-installer v0.7.0 requires squizlabs/php_codesniffer ^2 || ^3 || 4.0.x-dev -> found squizlabs/php_codesniffer[dev-master, 2.0.0a1, ..., 2.9.x-dev, 3.0.0a1, ..., 3.x-dev (alias of dev-master), 4.0.x-dev] but it conflicts with your root composer.json require (dev-4.x). - dealerdirect/phpcodesniffer-composer-installer v0.7.1 requires squizlabs/php_codesniffer ^2.0 || ^3.0 || ^4.0 -> found squizlabs/php_codesniffer[dev-master, 2.0.0a1, ..., 2.9.x-dev, 3.0.0a1, ..., 3.x-dev (alias of dev-master), 4.0.0beta1, 4.0.x-dev, 4.x-dev] but it conflicts with your root composer.json require (dev-4.x). - dealerdirect/phpcodesniffer-composer-installer[v0.7.2, v1.0.0] require squizlabs/php_codesniffer ^2.0 || ^3.1.0 || ^4.0 -> found squizlabs/php_codesniffer[dev-master, 2.0.0a1, ..., 2.9.x-dev, 3.1.0, ..., 3.x-dev (alias of dev-master), 4.0.0beta1, 4.0.x-dev, 4.x-dev] but it conflicts with your root composer.json require (dev-4.x).